<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>html的注释</title>
</head>
<body>
    <h1>注释你是看不见的</h1>
    注释用法以&lt;!--&nbsp;&nbsp;&nbsp;&nbsp;--&gt;<br/>
    快捷键为"ctrl+/"
    <!-- 哈哈哈哈哈哈哈哈哈嗝 -->
</body>
</html>